Grille



, May 22. 1928.

Y 1,670,948 G. W. ACKERMAN GRILLE Filed April 25, 1927 Tia. 2. j J0 w g Eni@ INVENTOR Patented May `22, 1928.

UNITEDI STATES PATENT gOF-i-flcmE.

GEORGE W. ACKERMAN, or NEW. YORK, N. Y., AssIGNoR rro AOERMAN DOOR INTER VIRWER CORP., OF NEW YORK, N. Y., A CORPORATION or NEWyORx.

GRILLE.

Application led April 2 3, 1927.` Serial N0..186l,115.

An object ofthe invention is to provide a grille capable of a Wide .range of utility, but linding one ofits preferred embodiments in awdevice for use on apartment doors.

An object of the invention isv to provide a device of this character which will permit the occupant of an apartment to'observe applicants lforentrance without opening the door, .to pay bills, or to carry on conversationV through the grille without'any danger ofv an intruder gaining entrance or inserting his hand through the grille to Open the door from the inside. The grille of the present invention representsa material improvement over the grille disclosed in myl copending application Serial N o.- 126,055; particularly in that the cost of kmanufacturing the grille has beeny materially reduced, and the Operation of attaching the grille to a door has been considerably simplified and facilitilted. J I

It will be recalled that in my prior applition, two frame memberswere laid against.

opposite sides of'a door, these frame-meml bers encirclingfa previously formed recess and beingv connectedtogether by securing devices passed through the door. One frame member carried a grating and theother carried a closure. v .v

In accordance with the present invention, the device consistsof two main parts instead of three, to wit: a grille-bearing frame member, to which the closure is directly connected. 'The device is thus"of.unitary,ratherA lthan built-up construction, and may be lemplaced @as a vunitin a previously prepared opening in the door.

the grille unitlby 'the simple expedient of fitting it into the opening, the grille being held by screws,'cement or frictonally fitted as is desired. There is never any necessity for having access to both sides of the.

ther modification.

In fact a workman standing On the Outside of a door may attach hereinafter set forth and pointed out inthe claims., Theinvention may be more fully understood from the following description in connection 'with the accompanying ydraw- 1ngs'wherein-` 1 n Fig. 1 is an outside plan view showing the grille of the presentpinvention attached to a door. ,i Y v Fig. 2 is an inside plan view with parts broken away and in section for clearness.

Fig. 3 is ,atransverse sectional view on the line 3 3 vof Fig. 2.

Fig. 4 is a sectional vplan view illustrating f a slightlymodied form of grille and the method of attaching it to a door.

Fig. 5 is a similar View illustratingk a fur- Referring first to .Figs.,1 to 3 inclusive of the drawings, I have used the reference numeral 10 to vdesignate a door, and 11 an opening preferably of circular shape which l.is cut in the door. `The grilles are' particularly suited vforuse in connection with thin metal lire-proof doors, and vare designed to 'comply with' all the requirements of the fire laws. An openingv frame;` vmember 12 is adapted to snugly fit within the opening 11 and includes a flanged portion `13 overlying the outer face of .the door. Frame memberl 12 is preferably integrally cross barred as at 14 andthe flange 13 is provided with suitable openings through which securing screws 4or equivalent securing .devices 15, are adapted to be passed. If desired, the screws may be passed through the radially extended ear, portions 16;.of the lange 13.

Projecting inwardly from the rear face of the ring 12 are a pair ofspaced ears .17 receiving between vthem, spaced ears 18 onv a circular closure plate 19. A hinge pin 2() passes through aligned pairs of ears 17 and 18 and the exposed intermediate portion of the hinge pin is preferably encircled by a coiled torsional spring 21 urging the closure plate 19 to closed position.

The portion of the closure 19 opposite its hinged portion carries a sliding bolt 22 mounted in a.y sleeve 23 integral with the closure and normally projected by a spring 24 pocketed in the inner end of the sleeve. The shank 25 of an operating handle 26 works in a slot 27 in the sleeve, and the pocket end of the bolt is provided with an inclined face-28 for coaction with a keeper Ideparting member Q9` onE thegring 12 inorder'that the bolt ma automatically latch `asthe closure is urged 'to closed position by the spring21.l

lL:Preerably in ordeimt avoid` a drait. y

rille )the L eentr al portion ofthe thiougli-.tbegi y l closure (platen is oifset as'at B0 to snugly fit Within the ring 12.

In Fig. 4 I have illustrated a slightly .modified form of ears 16 and the screws 15 may be omitted. y correspond tothe ring l12y and flangel 'ot Fig. 1. lThe grillev unit is inserted fromone side of the door -into a prepared-opening '11a' and retained by the use of a suitablefcementfil which 'eonnects'flthe ring andeflange to 'the outer Vface off-the door and the lWalls Xof the opening.

1n Fig. 511 have illustrated a`A further modification xWhereinthe door opening 11b isv tapered, theiange-I 13 `is omitted-andthe ring 12b is taperedinorder that itrmaywbe `f'r-iet-ionally "fitted into the Ltapered opening.

1 It A will be `notedflthat minH allthree .forms of Ithe inyentioni, the barred frame plate 4and its Aclosure are previously assembled andthen appliedl as a unit tothe door bylthe simple expedient` ofv inserting y the grille 1 unit l into the opening- Wherelit mayybe secured by.: a

.friction tit, cement orf screws. -1- kObviously, v various: lfchanges and.; ilalterations might bemade in the general formzand arrangement of the parts' d eseribedwitliout from the invention. '-\Hence Indo not- Wish to=v limit myself to vthe l details set tvshalll considerA myself at liberty forth, bu

5to r. lrnailsze; such flchanges and A4alterations .was l `fafir-lyl` fall- Within Ithespiritand` scopelot` the appended lclaims.

l I' claim z 1. vA- tWo-piece gri-lle unitadapted to :be

assembled land subsequently bodily` .emplaced andl secured inf an:opening..A in a. oorfor the dike :romone` sideofhthe door,a;nd includ- `inga crossbarredframemember tting :the

opening and a` 'closure :member pivotally jconne'ctedfto one-sideothe innerfface of the': frame and coactinga with .latching means carried -:v1by. the freek .portion .-bfzpthe closure the invention .inxwhieh ltli'e .QMAVtWo-piece grille unit adapted to bev assembler-eed esbseqeeetlebedly empleed andfsecuredlinanppen in a-dvoor or'the @ging a cross barred frame member fitting the opening and a closure member pivotally connected. to,one-,side of the inner face of the frame and coacting With latching means carri-ed.L by theirfreezzportionfi oliitliefeclosure and4 i the iothenfside ;.o't' tbe...innenliace ofifghe frame;ithelrame. including meansiionglimitf ingstl-ie'Lentrancelofi tbe grillery unit ,intoethe lopening. i

l BMA two-piece. gnillemmit-` adapted; toi,v be assem bled and subsequently: bodily emplaeed Aand secured ina-an openingnin a; .doonom the Alike? fronrloneyside of -theidoorf;andincludingY across barredfframegignembeinfittingithe opening and.4 a A.;moeable elosnrei xmember mounted. on; .the inner; i'aceioglitheframe, Lthe .frameL andy ope1.1i-ng 2;.jbf-ingl siniilarly.;,tapered 'whereby thezgr-ille .unitlmaybe' forceeitted 'intoitheqepening 7 v e all. A twofpiecelgrille. -.11nit-aldaptedl.toibe lasse-mbled-z/and..subsequentljytbbdily. emplaced and.. secured .in aniopeningr. in; aldoor orithe Llike from `oneSide i ofrtlerdoor, and including a cross barrediframe memberJ ittingrthe opening and a closure member pivotally Acen nectedaio,...onei side o..,the;fin11'er.;iace of l cheff-(frame, .enacting with k.latcl1ing means carried byi theajfreeetportion :ofi thea closnre wand 1 theotber sidefnfrtherinnem face ofzihe trainee .'the; frame..zfrictionally L:fittings Within theepening.

v assembled and bodily emplacediniansopenings. in ai. doors-.or :the dike' fromJ onenside of .@theedoore, theiinit including. aafnamef portion iadaptedst'o g tzrwithin: the opening; zand a w movable qclosure member rmeiinted onotheinmer. -sideflortheframe, thea .clasuraimembel being Whollynconiinedmithinnthemreaiof inthe `op ening,A zwheneby theiplmite mayibe... i11- V.serted i bodynto. :theopeningI 

